67748777452 has 24 divisors (see below), whose sum is σ = 121399950672. Its totient is φ = 33064147200.

The previous prime is 67748777401. The next prime is 67748777477. The reversal of 67748777452 is 25477784776.

It is a super-2 number, since 2×67748777452² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121752 + ... + 387712.

It is an arithmetic number, because the mean of its divisors is an integer number (5058331278).

Almost surely, 2^67748777452 is an apocalyptic number.

It is an amenable number.

67748777452 is a deficient number, since it is larger than the sum of its proper divisors (53651173220).

67748777452 is a wasteful number, since it uses less digits than its factorization.

67748777452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267489 (or 267487 counting only the distinct ones).

The product of its digits is 129077760, while the sum is 64.

The spelling of 67748777452 in words is "sixty-seven billion, seven hundred forty-eight million, seven hundred seventy-seven thousand, four hundred fifty-two".